1 /*
2 * Copyright (C) 1999-2002 Harri Porten (porten@kde.org)
3 * Copyright (C) 2001 Peter Kelly (pmk@post.com)
4 * Copyright (C) 2004, 2007, 2008 Apple Inc. All rights reserved.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 *
21 */
22
23 #include "config.h"
24 #include "JSNumberCell.h"
25
26 #if USE(JSVALUE32)
27
28 #include "NumberObject.h"
29 #include "UString.h"
30
31 namespace JSC {
32
toPrimitive(ExecState *,PreferredPrimitiveType) const33 JSValue JSNumberCell::toPrimitive(ExecState*, PreferredPrimitiveType) const
34 {
35 return const_cast<JSNumberCell*>(this);
36 }
37
getPrimitiveNumber(ExecState *,double & number,JSValue & value)38 bool JSNumberCell::getPrimitiveNumber(ExecState*, double& number, JSValue& value)
39 {
40 number = m_value;
41 value = this;
42 return true;
43 }
44
toBoolean(ExecState *) const45 bool JSNumberCell::toBoolean(ExecState*) const
46 {
47 return m_value < 0.0 || m_value > 0.0; // false for NaN
48 }
49
toNumber(ExecState *) const50 double JSNumberCell::toNumber(ExecState*) const
51 {
52 return m_value;
53 }
54
toString(ExecState *) const55 UString JSNumberCell::toString(ExecState*) const
56 {
57 if (m_value == 0.0) // +0.0 or -0.0
58 return "0";
59 return UString::from(m_value);
60 }
61
toThisString(ExecState *) const62 UString JSNumberCell::toThisString(ExecState*) const
63 {
64 if (m_value == 0.0) // +0.0 or -0.0
65 return "0";
66 return UString::from(m_value);
67 }
68
toObject(ExecState * exec) const69 JSObject* JSNumberCell::toObject(ExecState* exec) const
70 {
71 return constructNumber(exec, const_cast<JSNumberCell*>(this));
72 }
73
toThisObject(ExecState * exec) const74 JSObject* JSNumberCell::toThisObject(ExecState* exec) const
75 {
76 return constructNumber(exec, const_cast<JSNumberCell*>(this));
77 }
78
getUInt32(uint32_t & uint32) const79 bool JSNumberCell::getUInt32(uint32_t& uint32) const
80 {
81 uint32 = static_cast<uint32_t>(m_value);
82 return uint32 == m_value;
83 }
84
getJSNumber()85 JSValue JSNumberCell::getJSNumber()
86 {
87 return this;
88 }
89
jsNumberCell(ExecState * exec,double d)90 JSValue jsNumberCell(ExecState* exec, double d)
91 {
92 return new (exec) JSNumberCell(exec, d);
93 }
94
jsNumberCell(JSGlobalData * globalData,double d)95 JSValue jsNumberCell(JSGlobalData* globalData, double d)
96 {
97 return new (globalData) JSNumberCell(globalData, d);
98 }
99
100 } // namespace JSC
101
102 #else // USE(JSVALUE32)
103
104 // Keep our exported symbols lists happy.
105 namespace JSC {
106
107 JSValue jsNumberCell(ExecState*, double);
108
jsNumberCell(ExecState *,double)109 JSValue jsNumberCell(ExecState*, double)
110 {
111 ASSERT_NOT_REACHED();
112 return JSValue();
113 }
114
115 } // namespace JSC
116
117 #endif // USE(JSVALUE32)
118